How do I query a custom object with List Builder in LCRM?

Our organization has created several custom objects in LCRM. However, when we attempt to query the custom object with List Builder, it does not appear in the results. How do we query with List Builder so that we can gather information on our custom objects?

Article
Number:94239

Products:

Luminate_CRM

If you create a custom object, you will need to use the custom Salesforce ID that is created for that custom object when using List Builder. Follow these steps to find the ID:

Log into Salesforce

Navigate to the specific custom object in question

Click on the custom object

Highlight and copy the 15-character Salesforce ID from the custom object's web URL